Re: [PLUG] Problem with hplip/hp device manager not seeing printer on same unmanaged switch
On Wed, Nov 3, 2021 at 3:08 PM c wrote: > I have a printer connected to the same unmanaged switch as one of my ubuntu > boxes, but I cannot get the device manager to see the printer, even if I > manually add the ip address, both are getting 192.168.0.x addresses. > > I've tried changing the connection speed and making sure the printer is set > to ipv4. This printer has always been reachable when I connect it and a > machine directly to the router. I'm really not sure what to test or try > next. Any suggestions? > > Bad ethernet cable and or try different port? Bill
Re: [PLUG] Problem with hplip/hp device manager not seeing printer on same unmanaged switch
On Wed, Nov 3, 2021, 16:08 c wrote: > I have a printer connected to the same unmanaged switch as one of my ubuntu > boxes, but I cannot get the device manager to see the printer, even if I > manually add the ip address, both are getting 192.168.0.x addresses. > > I've tried changing the connection speed and making sure the printer is set > to ipv4. This printer has always been reachable when I connect it and a > machine directly to the router. I'm really not sure what to test or try > next. Any suggestions? > . How about other computers? Can they see the printer? -T >
Re: [PLUG] DNS Provider
On Wed, Nov 3, 2021, 11:06 Paul Heinlein wrote: > On Wed, 3 Nov 2021, Tomas Kuchta wrote: > > > Wes is correct + it makes sense - IP owner is the entity which can create > > reverse DNS record for the IP. > > Right. I think DNS has a built-in assumption that domain owners also > manage their own IP space, which is mostly untrue for personal > domains. > > > If you want to do your own email server, on Linode for example, you will > go > > to your DNS provider and set Linode's DNS server as your domain DNS or > just > > email DNS. Then create your zone + reverse record on Linode's DNS server. > > I'm willing to pay for an always-on VM, which may be an unnecessary > expense for someone else, but Digital Ocean created the reverse > pointers for my VM when I spun it up. I didn't need to change my DNS > zone provider at all. I've used Zoneedit's free DNS service for years > now; it's always been solid for me: > >https://www.zoneedit.com/free-dns/ > . Ditto. I did not have to pay Linode for reverse DNS on static IP. AWS is same, I believe. The DNS needs to be managed/matched in two places though. - T
[PLUG] Problem with hplip/hp device manager not seeing printer on same unmanaged switch
I have a printer connected to the same unmanaged switch as one of my ubuntu boxes, but I cannot get the device manager to see the printer, even if I manually add the ip address, both are getting 192.168.0.x addresses. I've tried changing the connection speed and making sure the printer is set to ipv4. This printer has always been reachable when I connect it and a machine directly to the router. I'm really not sure what to test or try next. Any suggestions? Thanks, Chris Purcell
Re: [PLUG] DNS Provider
On 2021-11-03 08:06, Paul Heinlein wrote: On Wed, 3 Nov 2021, Tomas Kuchta wrote: Wes is correct + it makes sense - IP owner is the entity which can create reverse DNS record for the IP. Right. I think DNS has a built-in assumption that domain owners also manage their own IP space, which is mostly untrue for personal domains. If you have a static IP address associated with your VM somewhere The IP owner is responsible for the reverse ptr record. However they usually (?) have some mechanism in place for you to specify the name. For example: michael@snug:~/$ host 107.191.106.119 119.106.191.107.in-addr.arpa domain name pointer tent.michaelrpdx.com. Since I run my own DNS service tent.michaelrpdx.com (and a bunch of other names) point to the IP address. As long as your IP address provider gives that service you should be OK. --- Michael Rasmussen, Portland Oregon Be Appropriate && Follow Your Curiosity
Re: [PLUG] DNS Provider
On Wed, 3 Nov 2021, Tomas Kuchta wrote: Wes is correct + it makes sense - IP owner is the entity which can create reverse DNS record for the IP. Right. I think DNS has a built-in assumption that domain owners also manage their own IP space, which is mostly untrue for personal domains. If you want to do your own email server, on Linode for example, you will go to your DNS provider and set Linode's DNS server as your domain DNS or just email DNS. Then create your zone + reverse record on Linode's DNS server. I'm willing to pay for an always-on VM, which may be an unnecessary expense for someone else, but Digital Ocean created the reverse pointers for my VM when I spun it up. I didn't need to change my DNS zone provider at all. I've used Zoneedit's free DNS service for years now; it's always been solid for me: https://www.zoneedit.com/free-dns/ -- Paul Heinlein heinl...@madboa.com 45.38° N, 122.59° W
Re: [PLUG] DNS Provider
On Wed, 3 Nov 2021, Tomas Kuchta wrote: In my experience, if you care about controlling your domain long term, it is very good idea to separate DNS and ISPs providers. That way, you can move ISPs as well as DNS services independently. FWIW, my ISP is ZiplyFiber and my domain registrar/DNS provider is NameCheap. The latter is very inexpensive and provides complete services with excellent access to their tech support folks. Rich
Re: [PLUG] DNS Provider
On Tue, Nov 2, 2021, 21:28 Michael Barnes wrote: > On Tue, Nov 2, 2021 at 6:16 PM wes wrote: > > > On Tue, Nov 2, 2021 at 6:05 PM Michael Barnes > > wrote: > > > > > What an ordeal. I have a security camera system that sends email > alerts. > > I > > > used to send via Google, but they tightened up their security and I > > cannot > > > use that any more. I figured I'd just set up a simple mail server on an > > RPi > > > and do it myself. My ISP provides a static IP I can set up pretty much > > > anything I want. I bought a domain name through hover.com for the > > purpose, > > > and set up A and MX records in their DNS. > > > > > > I finally got my mail server figured out and working and try to send > > email > > > to my normal account, which is promptly rejected by my email provider > > > (IONOS) for a bad PTR record. (Mail does go to my gmail account without > > > complaint.) I go into the dashboard for my domain to set the PTR > record, > > > and there is no option. I contacted tech support and get "Sorry, we do > > not > > > support PTR records. You will need to host your DNS with a 3rd party." > > What > > > he heck kind of domain registrar who provides DNS services does not > > support > > > PTR records? > > > > > > > the first half of their answer is sensible, the second half is not. no > DNS > > provider can do what you're looking to do. > > > > > > > > > > Been browsing the Internet for DNS providers, and can't find anything > > that > > > tells me what they support. The few who I contacted said basically, > "Sign > > > up for our service to see what records we support." Seriously? > > > > > > > yeah, that's ridiculous. > > > > > > > It's been like 15 years or more since I did this kind of stuff. Got to > > > learn it all over again. > > > > > > > I would suggest that you begin by learning more about what a PTR record > is > > and how it's used. it is essentially a DNS record for an IP address - the > > opposite of what we typically understand as a DNS record. this is often > > referred to in shorthand as a "reverse DNS record." > > > > > > > > > > Anybody have suggestions on a free or cheap DNS provider that I can set > > PTR > > > and any other needed records? > > > > > > > since a PTR record is set on the IP address, only the owner of the IP > > address can set it. you will need to ask your ISP if they allow this. > most > > business-class providers allow it, most residential-class don't, and > > everywhere in between will give different answers. > > > > alternatively, you can configure your mail server to announce itself as > the > > hostname that matches what's currently in your PTR record, if it exists. > > this is not super trivial, it will involve a fair amount of work, but it > > can be done. > > > > -wes > > > > Like I said, it has been many years since I've worked at this level and I > have probably forgotten more than I knew in the first place. > > Thanks for your comments. After a little research, I think I understand the > issue better. I do have a static IP through my ISP and they said my running > servers should not be an issue, so I hope this is something they will > accomodate. > > Thanks, > Michael > . Wes is correct + it makes sense - IP owner is the entity which can create reverse DNS record for the IP. If you want to do your own email server, on Linode for example, you will go to your DNS provider and set Linode's DNS server as your domain DNS or just email DNS. Then create your zone + reverse record on Linode's DNS server. This might seem like unnecessary hassle, to have essentially two separate DNS providers. In my experience, if you care about controlling your domain long term, it is very good idea to separate DNS and ISPs providers. That way, you can move ISPs as well as DNS services independently. Best luck, T
[PLUG] THURSDAY PLUG Meeting Linux on RISC-V
Portland Linux/Unix Group General Meeting Announcement Who: Drew Fustini What: Linux on RISC-V Where: https://meet.jit.si/pdxlinux When: Thursday, November 4th, 2021 at 7pm Why: The pursuit of technology freedom This talk will explore the future of Linux on RISC-V, an open instruction set (ISA). I will introduce the open source FPGA ecosystem including Migen and LiteX, and explain how they make it possible to quickly implement SoC designs in an FPGA capable of running Linux on a RISC-V. I will also look at the current RISC-V SoC's that are capable of running Linux and available dev boards. I will also talk about how support in Linux for RISC-V is continuing to evolve such as the introduction of KVM RISC-V support and look at RISC-V hardware support that is in the process of being upstreamed. I will describe how the RISC-V Platform Specification Task Group is trying to standardize boot and runtime requirements with the creation of the Linux-2022 specification. About Drew Drew Fustini is a Linux developer at BayLibre and serves as an ambassador for RISC-V International. He sits on the board of directors for the BeagleBoard.org Foundation and the Open Source Hardware Association (OSHWA). When not hacking on Linux, Drew enjoys designing open source hardware projects in KiCad that are fabricated in purple and gold by OSH Park. PLUG is open to everyone and does not tolerate abusive behavior on its mailing lists or at its meetings. PLUG Page with information about all PLUG events: http://pdxlinux.org/ Follow PLUG on Twitter: http://twitter.com/pdxlinux Michael Dexter PLUG Volunteer
